Closure for containers



Feb. 1, 1938. J, A, OLESEN 2,107,256

CLOSURE FOR CONTAINERS Filed Feb. 11, 1937 Patented Feb. 1, 1938 CLOSUREFOE. CONTAINERS Jens Andersen Oiesen, Toronto, (lntario, Canada,

assignor to Charles Ernest Johnston,

Toronto, Gntario, Canada Application February 11, 1937, Serial No.125,202

'2 Claims.

The invention relates to improvements in closures for containers asdescribed in the present specification and shown in the accompanyingdrawing that forms part of the same.

The invention particularly concerns a container for semi-liquidsubstances such as shaving cream, and has for its object to provide anefficient and reliable closure structure incorporating a dispensingorifice controlled by a floating or loose sealing member.

The closure preferably has a threaded connection with the container,which may be a collapsible tube, and the orifice is encircled by a seatengaged by the sealing member in the closed position of the closure. Thesealing member is shouldered against the container and is supplied withpassages leading to the seat.

The salient feature of this construction is that by partially turningthe closure in a screw-off direction, the compression of the tube causesthe contents to fiow into the passages and to forcibly unseat thesealing member so as to discharge through the orifice. The tightening ofthe closure seals off the outlet opening and the ejected material can bereadily removed.

According to this invention it is not necessary to remove the cap fromthe tube in order to discharge the contents. Furthermore, it is simpleto operate and easy to regulate in order to obtain the desired quantityof material each time the tube is used.

Referring to the accompanying drawing, Figure 1 is a perspective view ofa container embodying the present invention.

Figure 2 is an axial sectional view of the closure and neck portion ofthe container on an enlarged scale.

Figure 3 is a perspective view of the sealing member.

Figure 4 is a similar section to Figure 2 but showing a slightlymodified form of sealing member.

Figure 5 is a side elevation of the variant sealing member detached fromthe container of which only the neck portion is shown.

Like numerals of reference indicate corresponding parts in each figureof the drawing.

The collapsible tube 6 is of the conventional construction, having anexternally threaded neck I terminating in an abrupt face with a centralopening.

The closure is in the form of a screw cap 8 having the rear portion ofits bore internally threaded as at 9 to threadedly engage the neck 1.

The threaded bore leads to a seat I in the form of a frustum of a cone,which terminates in the discharge orifice l I.

The sealing member is substantially in the shape of a frustum of a coneand has a face I2 engageable with the seat 10 so as to close theorifice. In the preferred form shown in Figures 2 and 3, a reducedextension is provided as at l3 for the purpose of constituting a guide.

The rear face l2 of the sealing member abuts the end face of the neck I.The passages are composed of the peripheral flutes l4 communicating withthe interior of the tube and terminating at the face l2. Any number offlutes may be supplied.

In the modification shown in Figures 4 and 5, the extension I3 isdispensed with, and projections as at l are furnished to fit intonotches as at It in order to preclude the sealing member from turning.Additionally, the fiutes are replaced by ducts ll consisting of smallholes communicating with the bore of the neck. The periphery of thesealing member may be threaded to screw into the cap with the neck.

In operation, when the cap is tightened, the seat ill bears against theface l2 of the sealing member and thus closes the orifice. By giving thecap a partial turn from its closed position and compressing the tube,the material is urged through the passages and unseats the sealingmember. This provides a space I 8 through which the material may fiow tothe orifice. It is important that the passages communicate with the seatl5), otherwise the sealing member will stick in its closed position whenthe cap is loosened and block the orifice. The fluid pressure releasesthe scaling member in the construction herein disclosed.

What I claim is:

1. A closure for a collapsible tube or other contain-er having adispensing orifice encompassed by a threaded neck, said closurecomprising a cap threadedly engaged with the neck and having a boreforming a seat encircling an orifice, and a sealing member looselymounted in the bore thereof having a face engageable with said seat toseal off the orifice, said sealing member having discharge passagesterminating at said face and controlled by the seat of the cap.

2. A closure for a collapsible tube or other container having adispensing orifice encompassed by a threaded neck, said closurecomprising a cap threadedly engaged with the neck and having a boreforming a seat encircling an: orifice, and a sealing member fioatinglylodged in the bore thereof in abutment with said neck, said sealingmember having a face engageable with said seat to seal ofi the orificeencompassed thereby and having discharge passages terminating at saidface and controlled by the seat of the cap.

3. A closure for a collapsible tube or other container having adispensing orifice encompassed by a threaded neck terminating in an endface, said closure comprising a cap threadedly engaged with the neck andhaving a bore forming a seat encircling an orifice, and a sealing memberfioatingly lodged in the bore thereof and shouldered against the endface of said neck, said sealing member having a face engageable withsaid seat to seal off the orifice encompassed thereby and havingdischarge passages terminating at said face and controlled by the seatof the cap.

4. A structure in accordance with claim 2, in which the dischargepassages of the sealing member consist of peripheral flutes.

5. A structure-in accordance with claim 2, in which the dischargepassages of the sealing member consist of ducts communicating with thedispensing orifice of the neck.

6. A structure in accordance with claim 1', in

which the sealing member is provided with means to preclude its turningwith the cap.

7. A closure for a collapsible tube or other 7 container having adispensing orifice encomingly lodged in the bore, said sealing memberbe-' ing substantially shaped in the form of a frustum i of a cone ofwhich the conical face is engageable with said seat, said sealing memberhaving a rear end face shouldered against the afore-i said end face ofthe neck and having discharge" passages communicating with thedispensing orifice of the neck and terminating at said conical face.

J ENS ANDERSEN OLESEN.

